I have seen two SM's where the hoses failed on passage. The result was catastrophic.
The Cat pump kept working away sprayed salt water everywhere but destroyed the battery chargers completely.
Dessalinator are outrageous with their prices. They quoted me Euros 550 plus vat and shipping three years ago for new hoses.
I had them made up in Ireland, albeit the fittings were mild steel in a hydraulic shop for Euros 70 the pair.
Seafever of Cuan